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cgroupv2: simplify parseCgroupFile #359

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Merged
merged 1 commit into from
Jun 5, 2025
Merged

cgroupv2: simplify parseCgroupFile #359

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13 changes: 3 additions & 10 deletions cgroup2/utils.go
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Original file line number Diff line number Diff line change
Expand Up @@ -135,16 +135,9 @@ func parseCgroupFile(path string) (string, error) {
func parseCgroupFromReader(r io.Reader) (string, error) {
s := bufio.NewScanner(r)
for s.Scan() {
var (
text = s.Text()
parts = strings.SplitN(text, ":", 3)
)
if len(parts) < 3 {
return "", fmt.Errorf("invalid cgroup entry: %q", text)
}
// text is like "0::/user.slice/user-1001.slice/session-1.scope"
if parts[0] == "0" && parts[1] == "" {
return parts[2], nil
// "0::/user.slice/user-1001.slice/session-1.scope"
if path, ok := strings.CutPrefix(s.Text(), "0::"); ok {
return path, nil
}
}
if err := s.Err(); err != nil {
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